/Engine/Source/Runtime/Engine/Classes/Engine/Engine.h
Called by internal engine systems after a network failure has occurred
void BroadcastNetworkFailure ( [UWorld](API\Runtime\Engine\Engine\UWorld) * World, [UNetDriver](API\Runtime\Engine\Engine\UNetDriver) * NetDriver, [ENetworkFailure::Type](API\Runtime\NetCore\Net\Core\Connection\ENetworkFailure__Type) FailureType, const [FString](API\Runtime\Core\Containers\FString) & ErrorString )